结构特点：

进口承插焊锻钢截止阀有三种阀盖设计形式。*种是螺栓式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺栓螺母连接，缠绕式垫片 (316夹柔性石墨制造)密封。客户有特殊要求时也可采用金属环连接。第二种设计形式是焊接式阀盖，按这种设计形式的阀门，其阀体与阀盖用螺纹连接，全焊密封。客户有特殊要求时也可采用全焊接连接。第三种是压力自紧式阀盖，按这种设计形式设计的阀门，其阀体与阀盖用螺纹连接，内压自密封环密封。

1.结构简单，维修比较方便。

2.工作行程小，启闭时间短。

3. 密封性好，密封面间磨擦力小，寿命较长。

规范标准：

公称压力：PN1.0-16.0MPa、ANSI CLASS 150-900、JIS10-20K

公称通径：DN10～500、NPS 1/2 ～36"

连接方式：法兰、对焊、螺纹等

适用温度：-196℃～700℃

阀体材料：WCB、ZG1Cr18Ni9Ti、ZG1Cr18Ni12Mo2Ti、CF8(304)、CF3(304L)、CF8M(316)、CF3M(316L)、Ti。

选用不同的材质，可分别适用于水、蒸汽、油品、硝酸、醋酸、氧化性介质、尿素等多种介质。

驱动方式：手动、伞齿轮传动、气动、电动、液动、气液联动、电液联动 

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